AutoCodes – Saturn – P1FDC Saturn

P1FDC Saturn Code - Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit Low Voltage

Quick Answer

The hybrid battery contains 192 individual cells. Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1FDC Saturn indicates Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit Low Voltage.
Common causes: Common causes include Faulty Hybrid/EV Battery Interface Control Module, Hybrid/EV Battery Interface Control Module harness is open or shorted, Hybrid/EV Battery Interface Control Module circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 926

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1FDC Saturn Description

The hybrid battery contains 192 individual cells. Two cells are welded together in parallel and called a cell group. There are a total of 96 cell groups in the hybrid battery assembly. These cell groups are electrically connected in series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cell groups are joined to form 3 distinct sections. The first 24 battery cell groups make up battery section 1. This section is adjacent to the cowl and contains battery cell groups 73 through 96. The next 28 battery cell groups make up battery section 2. This section is located behind section 1 and contains battery cell groups 45 through 72. The transverse battery section is section number 3 and it contains the remaining 44 battery cell groups 1 through 44. The battery sections also contain two temperature sensors, with one sensor located at each end of the section.
The battery energy control module monitors the voltage of the 96 battery cell groups. The voltage sense lines are attached to each individual cell group, and these sense lines terminate at a connector located on the top surface of the battery section. A voltage sense harness joins this connector to the battery energy control module.
The battery energy control module contains internal interface control modules that monitor specific cell groups.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to the hybrid powertrain control module 2 through serial data. The hybrid powertrain control module 2 is the host controller for diagnostic trouble code information.

OBDII Code P1FDC Saturn - Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit Low Voltage - AutoCodes.com — P1FDC Saturn Code - Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1FDC Saturn?

Faulty Hybrid/EV Battery Interface Control Module
Hybrid/EV Battery Interface Control Module harness is open or shorted
Hybrid/EV Battery Interface Control Module circuit poor electrical connection

How to Fix the DTC P1FDC Saturn?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1FDC Saturn code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1FDC Saturn code?

Need more information on how to fix the P1FDC Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1FDC Saturn Code

1. What are the common symptoms of OBDII code P1FDC in a Saturn Hybrid/EV?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What causes the Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit Low Voltage code in a Saturn vehicle?

- This code is typically caused by a malfunction in the voltage sensor circuit, which may be due to a faulty sensor, wiring issues, or a problem with the battery control module.

3. How can I diagnose the cause of the low voltage sensor circuit issue in my Saturn Hybrid/EV?

- Diagnosing the issue may require using a diagnostic scanner to read the specific fault codes, testing the voltage sensor, checking the wiring for any damage or loose connections, and verifying the functionality of the battery control module.

4. Can I still drive my Saturn with the P1FDC code present?

- It is not recommended to drive your vehicle with the P1FDC code active, as it can lead to further damage to the hybrid system and potentially cause unsafe driving conditions. It is best to address the issue promptly.

5. How can I repair the Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit Low Voltage issue in my Saturn?

- Repairing this issue may involve replacing the faulty voltage sensor, repairing any damaged wiring, or reprogramming the battery control module. It is recommended to consult a qualified mechanic or dealership for proper diagnosis and repair.

6. Is it safe to attempt DIY repairs for the P1FDC code in a Saturn Hybrid/EV?

- While some minor troubleshooting steps can be taken by DIY enthusiasts, it is recommended to seek professional help for diagnosing and repairing complex hybrid/EV system issues like the P1FDC code to ensure safety and proper functionality.

7. What are the potential risks of ignoring the P1FDC code in my Saturn Hybrid/EV?

- Ignoring the P1FDC code can lead to further damage to the hybrid/EV system, reduced fuel efficiency, and potential safety hazards. It is important to address the issue promptly to avoid costly repairs.

8. How much does it typically cost to repair the Hybrid/EV Battery Interface Control Module 8 Voltage Sensor Circuit Low Voltage issue in a Saturn vehicle?

- The cost of repairing the P1FDC code can vary depending on the exact cause of the issue, parts needed for replacement, and labor costs. It is advisable to get a few quotes from different mechanics or dealerships for an accurate estimate.

9. Can the P1FDC code be triggered intermittently in a Saturn Hybrid/EV?

- Yes, the P1FDC code can sometimes be triggered intermittently due to fluctuating voltage levels or temporary issues in the sensor circuit. It is important to address the root cause of the problem to prevent recurring faults.

10. How can regular maintenance help prevent the occurrence of the P1FDC code in a Saturn Hybrid/EV?

- Regular maintenance, including checking the hybrid system components, monitoring battery health, and addressing any warning signs promptly, can help prevent issues like the P1FDC code from occurring in a Saturn Hybrid/EV.